CN209867131U - A stamping die for preventing product stripping and extrusion - Google Patents

Abstract

The utility model discloses a stamping die for preventing product from being stripped and squeezed, comprising: an upper template, a lower template, a movable stripping plate, and a floating block; The end of the punch is movable and connected with a movable stripping plate; the top of the lower template is provided with a lower mold core, and the top of the lower mold core is provided with a profile, and the profile is provided with a retractable elastic floating block mechanism, The telescopic elastic floating block mechanism is used for clamping the mold, it is pressed down by the workpiece, and when the mold is opened, the workpiece is ejected; The reset ejector mechanism is used for delaying the fall of the movable stripper when closing the mold, and jacking up the movable stripper when the mold is opened. The design has the advantages of simple structure, low cost and good forming effect, which is beneficial to the stamping manufacture of vulnerable workpieces.

Description

A stamping die for preventing product stripping and extrusion

technical field

The utility model relates to a stamping die for preventing products from being stripped and squeezed, and belongs to the technical field of stamping dies.

Background technique

Stamping die is a special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processing, called cold stamping die (commonly known as cold stamping die). Stamping is a pressure processing method that uses a mold installed on a press to apply pressure to the material at room temperature to cause separation or plastic deformation to obtain the required parts.

At present, with the continuous development of wireless charging technology, wireless chargers are used more and more. The base of the wireless charger is an appearance part, which has relatively high requirements on appearance, and the product material is relatively soft, which is easy to appear in the stamping process. Defective products such as scratches, crushing and stamping, how to take protection and preventive measures for the products during mold molding is a problem that those skilled in the art urgently need to solve.

Utility model content

Purpose: In order to overcome the deficiencies in the prior art, the utility model provides a stamping die that prevents the product from being stripped and squeezed.

Technical solution: In order to solve the above-mentioned technical problems, the technical solution adopted in the utility model is:

A stamping die for preventing product from being stripped and extruded, comprising: an upper template, a lower template, a movable stripping plate, and a floating block; The end of the sub-end is movable and connected with a movable stripping plate; the top of the lower template is provided with a lower mold core, and the top of the lower mold core is provided with a profile, and the profile is provided with a retractable elastic floating block mechanism. The floating block mechanism is used for clamping the mold, it is pressed down by the workpiece, and when the mold is opened, the workpiece is ejected; the side of the lower mold core is provided with a retractable elastic reset ejector mechanism, and the retractable elastic reset ejector mechanism is used to When the mold is closed, the falling of the movable stripping plate is delayed, and when the mold is opened, the movable stripping plate is lifted.

As a preferred solution, the scalable elastic floating mechanism includes: a floating block, the lower end of the floating block is connected with a force transmission pin, the end of the force transmission pin is connected with a stop plate, the bottom of the stop plate is provided with a first spring, and the first spring is socketed On the first fixing bolt, the top of the first fixing bolt passes through the stop plate and is fixed in the lower formwork; the force transmission pin is movably connected with the lower formwork and the lower mold core, and the floating block is movably connected with the lower mold core.

As a preferred solution, the scalable and elastic reset ejector mechanism includes: reset ejector rod, the reset ejector rod is movably connected with the lower template and the lower die core, the head of the reset ejector rod extends out of the lower die core, and the rear part of the reset ejector rod is provided with a second The spring, the second spring is sleeved on the second fixing bolt, and the second fixing bolt is fixed in the lower template.

As a preferred solution, the punch material is SKH-9 steel.

As a preferred solution, the upper template, the lower template, the upper mold core, the lower mold core, and the movable stripping plate are made of SKD11 steel.

As a preferred solution, the material of the floating block is alloy tool steel.

Beneficial effects: the utility model provides a stamping die that prevents the product from being stripped and squeezed. The movable stripping plate is used to cooperate with the reset ejector rod to ensure that the moving stripping plate is slower than the upper mold when it falls and rises. The punch, so that when the mold closes and falls, the movable stripping plate does not come into contact with the workpiece. When the mold is opened and rises, the movable stripping plate is in slow contact with the workpiece under the support of the reset ejector pin, so that the workpiece can be stripped from the punch When the mold is closed, the external force affecting the deformation of the workpiece is small; at the same time, the floating block structure is adopted to further improve the stability of the contact between the workpiece and the mold surface when the mold is closed; the efficiency of the workpiece discharge is improved when the mold is opened. The use of different hardness and strength steel materials for different parts of the mold is conducive to saving costs and improving the service life of parts. The design has the advantages of simple structure, low cost and good forming effect, which is beneficial to the stamping manufacture of vulnerable workpieces.

Description of drawings

Fig. 1 is the structural representation when the utility model closes the mold;

Fig. 2 is a structural schematic diagram of the utility model when the mold is opened.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described further.

As shown in Figure 1, a stamping die for preventing the product from being stripped and extruded includes: an upper template 1, a lower template 2, a movable stripping plate 3, and a floating block 4, and an upper mold core 5 is arranged under the upper template 1, The upper mold core 5 is provided with a punch 6, and the end of the punch 6 is moved and connected with a movable stripping plate 3; the top of the lower template 2 is provided with a lower mold core 7, and the top of the lower mold core 7 is provided with a profile 8 , the profile surface 8 is provided with a retractable elastic floating block mechanism, when the flexible elastic floating block mechanism is used for mold closing, it is pressed down by the workpiece 9, and when the mold is opened, the workpiece 9 is ejected; the lower mold One side of kernel 7 is provided with a retractable elastic reset ejector rod mechanism, which delays the falling of the movable stripping plate 3 when closing the mold, and lifts the movable stripping plate 3 when the mold is opened.

The scalable elastic floating block mechanism includes: a floating block 4, the lower end of the floating block 4 is connected with a force transmission pin 10, the end of the force transmission pin 10 is connected with a stop plate 11, the bottom of the stop plate 11 is provided with a first spring 12, the first The spring 12 is sleeved on the first fixing bolt 13, and the top of the first fixing bolt 13 passes through the stop plate 11 and is fixed in the lower template 2; Floating block 4 is mobile connected with lower mold benevolence 7.

As a preferred solution, the retractable elastic reset ejector rod mechanism includes: reset ejector rod 14, the reset ejector rod 14 is movably connected with the lower template 2 and the lower mold core 7, the head of the reset ejector rod 14 extends out of the lower mold core 7, and the reset ejector rod 14 The tail of the rod 14 is provided with a second spring 15 , the second spring 15 is sleeved on the second fixing bolt 16 , and the second fixing bolt 16 is fixed in the lower formwork 2 .

Example:

As shown in Figure 2, when in use, the upper mold plate runs downwards to drive the punch on the upper mold core to move downwards, and the end of the punch moves off the plate and slowly falls under the support of the reset ejector rod. At this time, the punch continues to fall and Push the workpiece to the mold surface to ensure that the movable stripping plate does not contact with the outer edge of the workpiece to cause extrusion; the upper mold core continues to fall and pushes the movable stripping plate to move downward, and at the same time, compresses the reset ejector pin downward.

The punch continues to go down, and the punch pushes the workpiece into the profile, and at the same time presses down the floating block under the profile to complete the stamping of the workpiece.

When the mold is opened, the stop plate and the power transmission pin push the floating block upwards, and the floating block fixes the workpiece on the punch. When the upper plate continues to separate, the floating block pushes the workpiece out of the mold surface. Continue to separate under the drive of the movable stripping plate, and the movable stripping plate can only rely on the slow rise of the reset ejector rod, and the speed difference with the punch, the workpiece under the punch is blocked by the slowly rising movable stripping plate to complete the stripping of the workpiece. During the separation process of the upper and lower molds, the reset ejector rod always withstands the movable stripping plate to prevent the movable stripping plate and the workpiece from being squeezed and deformed by the force in the process of feeding and stripping.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (6)

1. A stamping die for preventing a product from stripping and being extruded comprises: cope match-plate pattern, lower bolster, its characterized in that: the movable demoulding device comprises an upper template, a movable demoulding plate and a floating block, wherein an upper die core is arranged below the upper template, a punch is arranged on the upper die core, and the tail end of the punch is movably connected with the movable demoulding plate; the top of the lower template is provided with a lower die core, the top of the lower die core is provided with a molded surface, and a telescopic elastic floating block mechanism is arranged at the molded surface and is used for being pressed down by a workpiece when the die is closed and ejecting the workpiece when the die is opened; and a telescopic elastic reset ejector rod mechanism is arranged on one side of the lower die core, and is used for delaying the falling of the movable stripper plate when the die is closed and jacking the movable stripper plate when the die is opened.

2. The stamping die for preventing the product from stripping and being extruded as claimed in claim 1, wherein: scalable elasticity kicking block mechanism includes: the lower end of the floating block is connected with a force transmission pin, the tail end of the force transmission pin is connected with a stop plate, the bottom of the stop plate is provided with a first spring, the first spring is sleeved on a first fixing bolt, and the top of the first fixing bolt penetrates through the stop plate and is fixed in the lower template; the force transmission pin is movably connected with the lower die plate and the lower die core, and the floating block is movably connected with the lower die core.

3. The stamping die for preventing the product from stripping and being extruded as claimed in claim 1, wherein: scalable elasticity ejector pin mechanism that resets includes: the reset ejector rod is movably connected with the lower die plate and the lower die core, the head of the reset ejector rod extends out of the lower die core, a second spring is arranged at the tail of the reset ejector rod and sleeved on a second fixing bolt, and the second fixing bolt is fixed in the lower die plate.

4. The stamping die for preventing the product from stripping and being extruded as claimed in claim 1, wherein: the punch material is SKH-9 steel.

5. The stamping die for preventing the product from stripping and being extruded as claimed in claim 1, wherein: the upper template, the lower template, the upper die core, the lower die core and the movable stripper plate are made of SKD11 steel.

6. The stamping die for preventing the product from stripping and being extruded as claimed in claim 2, wherein: the floating block is made of alloy tool steel.